WO2003090969A1 - Positioning device, especially for offset plates - Google Patents
Positioning device, especially for offset plates Download PDFInfo
- Publication number
- WO2003090969A1 WO2003090969A1 PCT/EP2002/004848 EP0204848W WO03090969A1 WO 2003090969 A1 WO2003090969 A1 WO 2003090969A1 EP 0204848 W EP0204848 W EP 0204848W WO 03090969 A1 WO03090969 A1 WO 03090969A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- positioning
- offset plate
- positioning table
- arm
- point
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
- B23Q3/186—Aligning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/001—Stops, cams, or holders therefor
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
- B41C1/1083—Mechanical aspects of off-press plate preparation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20207—Multiple controlling elements for single controlled element
- Y10T74/20341—Power elements as controlling elements
- Y10T74/20354—Planar surface with orthogonal movement only
Definitions
- the invention relates on the one hand to a device for positioning an element with respect to at least two reference points, and on the other hand to a device for positioning an offset plate on a positioning table of a pre-press equipment, comprising means to move the offset plate in a plane parallel to the positioning table to at least one reference point on the positioning table.
- U.S. 4,425,076 a process and apparatus is known for automatically positioning a piece on a worktable.
- a worktable supports a reference system constituted by three rollers.
- the piece such as a substrate is placed on the table in the neighborhood of the rollers.
- a first pivoting arm comes into contact with a side of the substrate to bring the opposed side in contact with the rollers.
- a second pivoting arm comes into contact with the side of the substrate to bring the opposed side in contact with the rollers.
- the arms are controlled by a single means such as a jack of which the body and the rod are floatingly mounted and are respectively associated with the two arms.
- the invention is primarily useful for positioning of a support for integrated circuits in a serigraphic machine.
- a placement apparatus for positioning and securing a circuit panel on a work surface includes two gripping or engaging devices to engage two diagonally opposite corners of the panel and a mechanism for moving the engaging devices substantially in line with a diagonal line of the panel and apply pressure thereto to position the center point of the panel and coordinate axes originating thereat in registration with a center point and reference coordinate axes of the work surface.
- the offset plates are put on the positioning table by means of a loader in the vicinity of three roller shaped reference points.
- the offset plate is positioned with respect to these three rollers by means of three fingers which are placed facing the rollers and which push the offset plate against these rollers. Once there is contact between the offset plate and the three rollers, the plate is positioned and the plate is kept in its correct position by means of vacuum channels.
- This device has the disadvantage that different fingers are necessary to position offset plates with different sizes.
- the positioning system is in that way dependent on the size of the offset plates.
- a further disadvantage is that different means are necessary to perform the different movements to the reference points.
- the purpose of the invention is on the one hand to provide in a device for positioning an element with respect to at least two reference points, which doesn't show the abovementioned disadvantages.
- This purpose is achieved by providing in a device for positioning an element with respect to at least two reference points, in which said device acts upon a working point on the element to be positioned and comprises a positioning arm attached to a fixed hinging point with respect to said reference points, comprising two mutually hinged parts allowing a movement of said element to each reference point.
- said device acts upon a working point on the element to be positioned and comprises a positioning arm attached to a fixed hinging point with respect to said reference points, comprising two mutually hinged parts allowing a movement of said element to each reference point.
- the positioning arm comprises a vacuum sucking element to make contact with the offset plate.
- a spring is provided between the two mutually hinged parts to bring the parts back into their original position after the positioning of the offset plate.
- said positioning arm comprises a double working cylinder to perform the movement of the positioning arm.
- the positioning arm comprises a second cylinder and a suction cup provided an up and down movement of the suction cup.
- a further purpose of the invention is to provide in a device for positioning an offset plate on a positioning table of a pre-press equipment which doesn't show the abovementioned disadvantages.
- This purpose is achieved by providing in a device for positioning a offset plate on a positioning table of an offset printing equipment, comprising means to move the offset plate in a plane parallel to the positioning table to at least one reference point on the positioning table, in which said means act upon a working point situated in the supporting plane of the offset plate on the positioning table.
- This has the advantage that offset plates with different sizes can be positioned by the same device and for the performing of the movement of the offset plate to each reference point the same means, i.e. a positioning arm, is provided.
- said means act upon said working point through an aperture in the positioning table.
- the processing time of the positioning device can be shortened when it is compared with the processing time which is necessary in a positioning system which is attached to the loader.
- the positioning can be performed while the positioning table is moved to the place where the offset plate is illuminated.
- At least two reference points are situated on the positioning table and said means comprise a positioning arm which is attached to a fixed hinging point with respect to said reference point, comprising two mutually hinged parts allowing a movement of said element to each reference point.
- the positioning arm comprises a vacuum sucking element to make contact with the element.
- a spring is provided between the two mutually hinged parts to bring the hinged parts back into their original position after the positioning of the element.
- said positioning arm comprises a double working cylinder to perform the movement of the positioning arm.
- the positioning arm comprises a suction cup and a second cylinder which provides for an up and down movement of the suction cup.
- the positioning table is provided with two positioning arms to position two offset plates at the same time or to position offset plates with greater size on the positioning table.
- - figure 2 is a cross-sectional view of a positioning arm which is arm attached to the positioning table;
- - figure 3 is a perspective view of the positioning arm as shown in figure 2;
- the device (1) for positioning at least one offset plate (2) on a positioning table (3) of a pre-press equipment comprises a loading device (not shown in the figures) which picks up the offset plate out of a cassette or a trolley, and puts the picked up offset plates on a positioning table (3). Thereafter, the offset plates are illuminated with a laser (not shown on the figure). After this illumination process, the offset plate (2) is transported to a online offset plate processor by means of a unloading system (not shown on the figure).
- Figures la, lb and lc show the principle for positioning the offset plate (2) on the positioning table (3).
- rollers On the positioning table (3), three roller shaped reference points (4a, 4b, 4c) (hereafter called rollers) are provided. Further, a positioning arm (5) is provided to move the offset plate against the rollers (4a, 4b, 4c).
- the positioning arm (5) consists of two mutually hinged parts, i.e. a first (6a) and a second hinged part (6b), allowing a movement of the offset plate (2) to each roller (4a, 4b, 4c).
- the first part (6a) of the positioning arm (5) is attached to a fixed hinging point (7) which is provided to the positioning table (3).
- the two hinged parts (6a, 6b) are mutually hinged to each other in a floating hinging point (8).
- the second part (6b) of the positioning arm (5) is provided with a vacuum sucking element (9) which can move in an aperture (20) (shown in figure 2 in the positioning table (3). In that way, the vacuum suction cup (9) can make contact with the offset plate (2).
- a spring (10) is provided between the two hinged parts (6a, 6b) to bring the two second hinged part (6b) back into its original position after the positioning of the offset plate (2).
- the offset plate (2) always have to be positioned against the three rollers (4a, 4b, 4c) with a small tolerance of some ⁇ m.
- the positioning arm (5) After the loading of the offset plate (2) on the positioning table (3) in the vicinity of the rollers (4a, 4b, 4c), the positioning arm (5) has to suck the offset plate (2) by means of the vacuum sucking element (9) which can move in the aperture (20) in the positioning table (3). Thereafter, a force F is exerted on the positioning arm (5), as shown in figure lb. Because of that, the positioning arm (5) will rotate around the fixed hinging point (7) and the offset plate (2) is pushed or dragged with force A against the first two rollers (4a, 4b).
- the positioning arm (5) will rotate around the fixed hinging point (7), but also around the floating hinging point (8) through which the offset plate (2) is moved with force B in the Y- direction. In that way, the spring (10) is stretched.
- the positioning arm (5) blocks and stays in the same position. Thereafter, the offset plate (2) is sucked to the positioning table (3) by means of vacuum channels (not shown on the figure) through which it remains in its position.
- the suction cup (9) which moves the offset plate (2) is now placed in a vacuumless position and the positioning arm (5) is moved back to its original position (as shown in figure la) by exorting force F in the other direction.
- two movements (A, B) in two different directions are performed through the same means, i.e. the positioning arm (5).
- the suction cup (9) acts upon a working point situated in the supporting plane of the offset plate on the positioning table (3).
- the offset plate (2) is accordingly not moved through sidewardly pushing, but is moved through sucking the underside of the offset plate (2) and moving it to the correct position by means of the positioning arm (5).
- the movement of the positioning arm (5) (shown in detail in figures 2 and 3) is performed through a double working cylinder (11). While the offset plate (2) is positioned, the cylinder (11) is retracted through which the positioning arm (5) can rotate around the hinging points (7, 8). After the positioning, the cylinder is pushed outwardly while the spring (not shown on the figures 2 and 3) brings the hinged parts (6a, 6b) back into their original position, in which a hook of 90° is formed between the hinged parts (6a, 6b).
- the double working cylinder (11) is hinged attached, at one end by means of the coupling piece (12) and at the other end through a rod eye (not visible on the figure).
- the positioning arm (5) is further provided with a second cylinder (13) which provides for the up and down movement of the suction cap (9).
- the suction cap (9) is coupled to the rod of the second cylinder (13) by means of a vacuum coupling piece (14). In this way, vacuum can be connected to the suction cap (9).
- the second cylinder (13) pushes up the suction cap (9), whereafter the suction cap is sucked vacuum and the offset plate (2) is pushed against the rollers (4a, 4b, 4c).
- vacuum channels in the positioning table (3) provide that the offset plate (2) stays in its correct position.
- the suction cap (9) is put in a vacuumless condition and the second cylinder (13) moves again downwards so as to be situated under the surface of the positioning table (3).
- the freedom of movement of the positioning arm (5) is limited because of a bearing holder (15) which can move in a stop block (16). These two elements determine the maximum movement space of the offset plate (2) in the X- and Y-direction and provide that the hook between the two hinged parts (6a, 6b) can not be smaller than 90°.
- the fixed hinging point (7) is formed through two ball bearings (17), a fastening bolt (18), a bearing house (19) and a fastening ring (21).
- the fastening bolt (18) is screwed in in the underside of the positioning table (3).
- the floating hinging point (8) is formed through two ball bearings (22), a fastening bolt (23), a coupling ring (24), a bearing house (25), an intermediate ring (26) and a self-locking nut (27).
- both positioning arms (5) are provided on the positioning table (3) as to illuminate two offset plates (2) at the same time. If offset plates (2) with a greater size have to illuminated, there is only space for one offset plate (2) on the positioning table (3). To position such offset plates (2), both positioning arms (5) can be used to push the offset plate (2) against the rollers (4a, 4b and 4c).
Landscapes
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Registering Or Overturning Sheets (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Jigs For Machine Tools (AREA)
- Punching Or Piercing (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Printing Plates And Materials Therefor (AREA)
- Screen Printers (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2002/004848 WO2003090969A1 (en) | 2002-04-26 | 2002-04-26 | Positioning device, especially for offset plates |
DE60216977T DE60216977T2 (en) | 2002-04-26 | 2002-04-26 | POSITIONING DEVICE, ESPECIALLY FOR OFFSET PRINTING PLATES |
AU2002319160A AU2002319160A1 (en) | 2002-04-26 | 2002-04-26 | Positioning device, especially for offset plates |
EP02748688A EP1499474B1 (en) | 2002-04-26 | 2002-04-26 | Positioning device, especially for offset plates |
CN028288335A CN1625456B (en) | 2002-04-26 | 2002-04-26 | Device for positioning at least one offset plates on positing platform of preprinting device |
US10/509,105 US7124687B2 (en) | 2002-04-26 | 2002-04-26 | Positioning device, especially for offset plates |
CA002482408A CA2482408C (en) | 2002-04-26 | 2002-04-26 | Positioning device, especially for offset plates |
AT02748688T ATE348686T1 (en) | 2002-04-26 | 2002-04-26 | POSITIONING DEVICE, PARTICULARLY FOR OFFSET PRINTING PLATES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2002/004848 WO2003090969A1 (en) | 2002-04-26 | 2002-04-26 | Positioning device, especially for offset plates |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003090969A1 true WO2003090969A1 (en) | 2003-11-06 |
Family
ID=29265876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/004848 WO2003090969A1 (en) | 2002-04-26 | 2002-04-26 | Positioning device, especially for offset plates |
Country Status (8)
Country | Link |
---|---|
US (1) | US7124687B2 (en) |
EP (1) | EP1499474B1 (en) |
CN (1) | CN1625456B (en) |
AT (1) | ATE348686T1 (en) |
AU (1) | AU2002319160A1 (en) |
CA (1) | CA2482408C (en) |
DE (1) | DE60216977T2 (en) |
WO (1) | WO2003090969A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020212306A1 (en) * | 2019-04-15 | 2020-10-22 | Ima Schelling Deutschland Gmbh | Method and apparatus for aligning planar workpieces |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080127848A1 (en) * | 2006-03-28 | 2008-06-05 | Deis Robert M | Methods and apparatuses for making lithographic plates |
US8069748B1 (en) | 2007-05-24 | 2011-12-06 | Prefix Corporation | XY linear slide mechanism |
US8286553B2 (en) * | 2010-03-24 | 2012-10-16 | Eastman Kodak Company | Wiffle-tree printing plate registration system |
CA2790874C (en) * | 2011-10-07 | 2019-11-05 | E2M Technologies B.V. | A motion platform system |
WO2018015500A1 (en) | 2016-07-21 | 2018-01-25 | Esko-Graphics Imaging Gmbh | System and process for mounting a printing plate on a carrier |
JP7155264B2 (en) | 2017-08-24 | 2022-10-18 | エスコ-グラフィックス イメージング ゲゼルシャフト ミット ベシュレンクテル ハフツング | Printing plate segment mounting system and method |
DE102018111810A1 (en) * | 2018-05-16 | 2019-11-21 | Homag Plattenaufteiltechnik Gmbh | Handling device for handling a plate-shaped workpiece, plate processing system, method for operating a handling device, and control and / or regulating device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2201873A1 (en) * | 1971-02-05 | 1972-08-17 | Mailaender Fa J G | Device for positioning an offset printing plate with respect to a printing plate cylinder of an offset press |
US4790584A (en) * | 1986-06-09 | 1988-12-13 | Teradyne, Inc. | Compliant link |
US6323035B1 (en) * | 1997-09-24 | 2001-11-27 | Glaxo Wellcome, Inc. | Systems and methods for handling and manipulating multi-well plates |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2199170A (en) * | 1935-06-10 | 1940-04-30 | Crown Cork & Seal Co | Sheet handling mechanism for sheet feeders |
US4425075A (en) * | 1981-04-20 | 1984-01-10 | The Perkin-Elmer Corporation | Wafer aligners |
US4921237A (en) * | 1986-09-05 | 1990-05-01 | Datacard Corporation | Input hopper apparatus and method |
US5497858A (en) * | 1992-08-07 | 1996-03-12 | Robert L. Cloud & Associates, Inc. | Dynamic motion limiter |
US5892574A (en) * | 1995-06-05 | 1999-04-06 | Western Litho Plate & Supply Co. | Plate exposing apparatus and method |
US6305678B1 (en) * | 2000-06-02 | 2001-10-23 | Hammersmith Mfg. & Sales, Inc. | Welder positioner |
-
2002
- 2002-04-26 AU AU2002319160A patent/AU2002319160A1/en not_active Abandoned
- 2002-04-26 DE DE60216977T patent/DE60216977T2/en not_active Expired - Lifetime
- 2002-04-26 AT AT02748688T patent/ATE348686T1/en not_active IP Right Cessation
- 2002-04-26 US US10/509,105 patent/US7124687B2/en not_active Expired - Lifetime
- 2002-04-26 EP EP02748688A patent/EP1499474B1/en not_active Expired - Lifetime
- 2002-04-26 CA CA002482408A patent/CA2482408C/en not_active Expired - Fee Related
- 2002-04-26 WO PCT/EP2002/004848 patent/WO2003090969A1/en active IP Right Grant
- 2002-04-26 CN CN028288335A patent/CN1625456B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2201873A1 (en) * | 1971-02-05 | 1972-08-17 | Mailaender Fa J G | Device for positioning an offset printing plate with respect to a printing plate cylinder of an offset press |
US4790584A (en) * | 1986-06-09 | 1988-12-13 | Teradyne, Inc. | Compliant link |
US6323035B1 (en) * | 1997-09-24 | 2001-11-27 | Glaxo Wellcome, Inc. | Systems and methods for handling and manipulating multi-well plates |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020212306A1 (en) * | 2019-04-15 | 2020-10-22 | Ima Schelling Deutschland Gmbh | Method and apparatus for aligning planar workpieces |
Also Published As
Publication number | Publication date |
---|---|
ATE348686T1 (en) | 2007-01-15 |
CN1625456B (en) | 2011-11-09 |
US7124687B2 (en) | 2006-10-24 |
CA2482408C (en) | 2008-03-18 |
CN1625456A (en) | 2005-06-08 |
DE60216977D1 (en) | 2007-02-01 |
DE60216977T2 (en) | 2007-04-05 |
CA2482408A1 (en) | 2003-11-06 |
US20050178230A1 (en) | 2005-08-18 |
EP1499474B1 (en) | 2006-12-20 |
EP1499474A1 (en) | 2005-01-26 |
AU2002319160A1 (en) | 2003-11-10 |
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